Trump says 'samurai' Japan will shoot North Korean missile tests 'out of the sky' in the future

President Donald Trump promised on Japanese Prime Minister Shinzo Abe’s behalf that Japan would shoot down North Korean missile tests that overfly his country.

Japan has several missile-defence platforms that could knock down a North Korean missile test, but it’s easier said than done.

Abe is hawkish for a Japanese leader, but Trump has consistently overestimated the efficacy of missile defence and taken the most aggressive line towards North Korea.

President Donald Trump said Japan will buy more US military equipment and take down North Korean missile tests that overfly the country.

“He will shoot them out of the sky when he contemplates the purchase of a lot of military equipment from the United States,” Trump said alongside Japanese Prime Minister Shinzo Abe at a news conference.

“The Prime Minister of Japan is going to be purchasing massive amounts of military equipment, as he should,” Trump said.

Japan operates US-built missile defence systems both on land and aboard its navy’s ships, but the intercontinental-range ballistic missiles (ICMB) tested by North Korea fly with such velocity that intercepting them remains a challenge, even for the most advanced platforms.

Japan has not previously attempted to shoot down North Korean missile overflights, nor has the US. With limited warning beforehand and missile defence not a foolproof solution, experts remain split on the wisdom of attempting to shoot down test launches.

While destroying a North Korean missile test in flight would rob Pyongyang of valuable test flight data, if the intercept attempt failed, it would erode the credibility of US and allied defences.

Japan recently reelected Abe, the country’s most militarily assertive leader in decades, but Trump’s hawkishness on North Korea surpasses Abe’s and perhaps even the capabilities of his own military.

Trump previously said that US missile defences can knock down North Korean missiles “97% of the time,” despite the fact that only in watered-down test settings can missile interceptors achieve that degree of success.

In war fighting conditions, experts assess that the US, or allies using US-designed systems, would struggle to down ICBMs, and may prove essentially ineffective against salvos of multiple missiles.